Copying to an empty folder?

When i use the command :

FILE.copy(source path , destination path)

it's perform the copy just if in the destination path there is a file in the same name as the file i want to copy from the source path. actualy- it's replace it.

how can i 开发者_StackOverflow社区perform copying that will create the file by itself?- i want to copy file to an empty folder!

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The folder must exist before copying files to it. So when you do:

File.Copy("d:\test\foo.txt", "d:\bar\foo.txt");

d:\bar must exist. If it does exist there are two possibilities:

1. It already contains foo.txt file inside -> in this case you will get an exception unless you use this overload.

2. It doesn't contain a foo.txt file inside -> Now there are two subcases:

   2.1. The user you are running your program under has sufficient privileges to write to this folder -> in this case the operation succeeds

   2.2. The user you are running your program under doesn't have sufficient privileges to write to this folder -> you get an exception (actually you could also get some other exceptions if for example there isn't sufficient disk space, ...)

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UPDATE:

Now that you have shown your code the problem is here:

File.Copy(
    Path.Combine(@dok.Letter,@"copy\Hackers.avi"),
    @"C:\Users\sshap5x\Desktop",
    true
); 

You need to specify a filename in the destination:

File.Copy(
    Path.Combine(dok.Letter, @"copy\Hackers.avi"),
    Path.Combine(@"C:\Users\sshap5x\Desktop", "Hackers.avi"),
    true
); 

Also for the sake of completeness you probably want:

string desktopPath = Environment.GetFolderPath(Environment.SpecialFolder.Desktop);
File.Copy(
    Path.Combine(dok.Letter, @"copy\Hackers.avi"),
    Path.Combine(desktopPath, "Hackers.avi"),
    true
); 

Like this you don't need to hardcode the Desktop path.

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According to MSDN File.Copy:

Copies an existing file to a new file

Are you sure this isn't working? Perhaps paste in some code.